<!DOCTYPE html>
<html>
    <head lang="en">
        <meta charset="UTF-8">
        <title></title>
        <style>
        
        </style>
        <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"> </script>
        <script src="jquery-ui.min.js"> </script>
        <link rel="stylesheet" href="jquery-ui.min.css">
        <script> 
        $(function(){
            $("#datepicker").datepicker();
            $("#btn").button();
        });
       
        
        </script>
        
    </head>
    <body>
      <p>Date:<input type="text" id="datepicker"></p>
      <a href="#" id="btn">按钮</a>
 
     
    </body>
</html>